Yes, I would also guess they're blurring the image with the box overlaid. In a production implementation, you may also want to consider how you do edge handlin

Yes, I would also guess they're blurring the image with the box overlaid. In a production implementation, you may also want to consider how you do edge handling here. (For faces in the middle of the frame, you want to use the real pixels from the underlying source image? Do you want to extend the pixels from inside the border? What are the aesthetic and information theory implications of each technique?) https://en.wikipedia.org/wiki/Kernel_(image_processing)#Edge_Handling https://en.wikipedia.org/wiki/Kernel_(image_processing)#Edge...